西南林业大学学报
西南林業大學學報
서남임업대학학보
JOURNAL OF SOUTHWEST FORESTRY COLLEGE
2015年
1期
33-37
,共5页
闽楠%优良家系%优良单株%综合选择
閩楠%優良傢繫%優良單株%綜閤選擇
민남%우량가계%우량단주%종합선택
Phoebe bournei%excellent families%plus trees%combination selection
对福建明溪地理种源试验的20个闽楠家系7年生子代林进行测定，采用树高、胸径和单株材积生长量多性状指标综合评价，估算其遗传增益。结果表明，选出的4个优良家系的树高、胸径和单株材积分别比家系均值提高22．85％、29．56％和89．27％；优良家系的树高、胸径和单株材积的平均遗传增益分别为19．26％、25．49％和78．99％，从优良家系选出的11株优良单株，树高、胸径和单株材积较家系平均值增加了53．16％、84．96％、341．16％，预期遗传增益分别为25．82％、35．59％、122．20％，选出的优良单株可作为闽楠的育种材料。
對福建明溪地理種源試驗的20箇閩楠傢繫7年生子代林進行測定，採用樹高、胸徑和單株材積生長量多性狀指標綜閤評價，估算其遺傳增益。結果錶明，選齣的4箇優良傢繫的樹高、胸徑和單株材積分彆比傢繫均值提高22．85％、29．56％和89．27％；優良傢繫的樹高、胸徑和單株材積的平均遺傳增益分彆為19．26％、25．49％和78．99％，從優良傢繫選齣的11株優良單株，樹高、胸徑和單株材積較傢繫平均值增加瞭53．16％、84．96％、341．16％，預期遺傳增益分彆為25．82％、35．59％、122．20％，選齣的優良單株可作為閩楠的育種材料。
대복건명계지리충원시험적20개민남가계7년생자대림진행측정，채용수고、흉경화단주재적생장량다성상지표종합평개，고산기유전증익。결과표명，선출적4개우량가계적수고、흉경화단주재적분별비가계균치제고22．85％、29．56％화89．27％；우량가계적수고、흉경화단주재적적평균유전증익분별위19．26％、25．49％화78．99％，종우량가계선출적11주우량단주，수고、흉경화단주재적교가계평균치증가료53．16％、84．96％、341．16％，예기유전증익분별위25．82％、35．59％、122．20％，선출적우량단주가작위민남적육충재료。
7-year-old progeny forest of 20 Phoebe bournei families was conducted in Mingxi County,Fujian Province.The height,DBH(diameter at breast height)and volume of individual tree were comprehensive assessed to analyze their genetic gain.The results showed that the height,DHB and stem volume of the 4 excellent families which were selected were increased by 22. 85%,29. 56% and 89. 27%,respectively,and the average genetic gain were 19. 26%,25. 49% and 78. 99%,respectively.1 1 plus trees were further selected from the excellent families, whose average height,average DHB and average stem volume were increased by 53. 16%、84.96%、341. 16%.re-spectively,and their expected genetic gains were 25. 82%、35. 59%、122. 20%,respectively.These excellent indi-viduals could be used as breeding materials of P. bournei.
